[Python-ideas] Add .cache and compile_commands.json to .gitignote

Hi All, I use clangd. Clangd creates a .cache directory, and there are also tools for generating a compile_commands.json file which tells clangd how to behave. I did a quick check, and there are no naming collisions with other files in the cpython project. What does everyone think? Can we add these two items to the .gitignore: - `.cache` - `compile_commands.json` -- Thanks! Jack DeVries